%0 Journal Article %1 WOS:000462410300080 %A de Lira, S R %A Bravo, J P %A Leao, I C %A da Costa, A D %A Martins, B L Canto %A de Freitas, D B %A Medeiros, J R De %C GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND %D 2019 %I OXFORD UNIV PRESS %J MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY %K analysis; data dwarfs; methods: photometric} techniques: white {stars: %N 3 %P 3935-3940 %R 10.1093/mnras/stz122 %T A wavelet analysis of photometric variability in Kepler white dwarf stars %V 484 %X This work describes a wavelet analysis of 14 Kepler white dwarf stars, in order to confirm their photometric variability behaviour and to search for periodicities in these targets. From the observed Kepler light curves we obtained the wavelet local and global power spectra. Through this procedure, one can perform an analysis in the time-frequency domain rich in detail, and so obtain a new perspective on the time evolution of the periodicities present in these stars. We identified a photometric variability behaviour in 10 white dwarfs, corresponding to period variations of similar to 2 h to 18 d: among these stars, three are new candidates and seven, earlier identified from other studies, are confirmed.

@article{WOS:000462410300080, abstract = {This work describes a wavelet analysis of 14 Kepler white dwarf stars, in order to confirm their photometric variability behaviour and to search for periodicities in these targets. From the observed Kepler light curves we obtained the wavelet local and global power spectra. Through this procedure, one can perform an analysis in the time-frequency domain rich in detail, and so obtain a new perspective on the time evolution of the periodicities present in these stars. We identified a photometric variability behaviour in 10 white dwarfs, corresponding to period variations of similar to 2 h to 18 d: among these stars, three are new candidates and seven, earlier identified from other studies, are confirmed.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND}, author = {de Lira, S R and Bravo, J P and Leao, I C and da Costa, A D and Martins, B L Canto and de Freitas, D B and Medeiros, J R De}, biburl = {https://www.bibsonomy.org/bibtex/253a123075b2965a0b680dc072cc8ef35/ppgfis_ufc_br}, doi = {10.1093/mnras/stz122}, interhash = {fcbf8529107b66b74e194f2ba5f87f11}, intrahash = {53a123075b2965a0b680dc072cc8ef35}, issn = {0035-8711}, journal = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY}, keywords = {analysis; data dwarfs; methods: photometric} techniques: white {stars:}, number = 3, pages = {3935-3940}, publisher = {OXFORD UNIV PRESS}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {A wavelet analysis of photometric variability in Kepler white dwarf stars}, tppubtype = {article}, volume = 484, year = 2019 }